[INFO] fetching crate see 0.0.4...
[INFO] checking see-0.0.4 against beta for pr-78714
[INFO] extracting crate see 0.0.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate see 0.0.4 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate see 0.0.4
[INFO] finished tweaking crates.io crate see 0.0.4
[INFO] tweaked toml for crates.io crate see 0.0.4 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate see 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 87b34041ef785cc1c1d09013d8633f2df215308a3269f8035e148a5c4538ce67
[INFO] running `Command { std: "docker" "start" "-a" "87b34041ef785cc1c1d09013d8633f2df215308a3269f8035e148a5c4538ce67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87b34041ef785cc1c1d09013d8633f2df215308a3269f8035e148a5c4538ce67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87b34041ef785cc1c1d09013d8633f2df215308a3269f8035e148a5c4538ce67", kill_on_drop: false }`
[INFO] [stdout] 87b34041ef785cc1c1d09013d8633f2df215308a3269f8035e148a5c4538ce67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dd3c3d259a3c19bdca9739b55a677babe79c52b8cdc5180706c2a7a5c0cbe88e
[INFO] running `Command { std: "docker" "start" "-a" "dd3c3d259a3c19bdca9739b55a677babe79c52b8cdc5180706c2a7a5c0cbe88e", kill_on_drop: false }`
[INFO] [stderr]     Checking ace v0.2.0
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking futures-task v0.3.6
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking async-compression v0.3.5
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.18.0
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking tokio-rustls v0.14.1
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking see v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `in_block` is never read
[INFO] [stdout]    --> src/conf/parse.rs:241:17
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 in_block = Some(n);
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `in_block` is never read
[INFO] [stdout]    --> src/conf/parse.rs:247:17
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 in_block = Some(n);
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `in_block` is never read
[INFO] [stdout]    --> src/conf/parse.rs:241:17
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 in_block = Some(n);
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `in_block` is never read
[INFO] [stdout]    --> src/conf/parse.rs:247:17
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 in_block = Some(n);
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.57s
[INFO] running `Command { std: "docker" "inspect" "dd3c3d259a3c19bdca9739b55a677babe79c52b8cdc5180706c2a7a5c0cbe88e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd3c3d259a3c19bdca9739b55a677babe79c52b8cdc5180706c2a7a5c0cbe88e", kill_on_drop: false }`
[INFO] [stdout] dd3c3d259a3c19bdca9739b55a677babe79c52b8cdc5180706c2a7a5c0cbe88e